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The self-adhesive RedEye Oxygen Patch accurately measures oxygen in packaging and other enclosed containers. Using a combination of proprietary sensing material and optical sensing technologies the non-invasive patch enables quick readings of the presence or absence of oxygen and provides quantitative measurements. The patch can be integrated intothe surface to permit non-invasive, through-the-package oxygen concentration measurements. The nano-porous sol-gel coating is non-reactiveand keeps the sensor immobilised, protected from the package contents.Depending on the application, the simple presence of oxygen can be visually determined by colour change with a handheld LED, or a fluorometer can be used to directly measure the exact oxygen level. RedEye coatings can monitor low levels of oxygen in gas (to 0.005%) and dissolved oxygen in liquids (to 20ppb). In addition to medical and pharmaceutical uses, the coatings are available for food, beverage, fuel and other hydrocarbon-based product applications.
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